Polymethylmethacrylate based molding compositions
US4065428A · kind A · utility
9Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1975 |
| Grant date | Dec 27, 1977 |
| Priority date | — |
| Expiry date | Dec 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are polyblend molding compositions which comprise (A) a polymethylmethacrylate matrix polymer; (B) polychloroprene rubber which is grafted with methylmethacrylate; and (C) a metal oxide. Specimens molded from these polyblends have a UL-94 rating of at least V-1 and a smoke level of less than 300 D.sub.m Flaming using the NBS smoke test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.